Earlier quoted context omitted.
What about class action? Could you make a class action against those who have sold your information?
A class action is an action where there are a large, possibly unknown, number of plaintiffs suing a single group of named defendants. With the thought process being that if a single case against a named defendant is won, then that same outcome would happen for every other plaintiff, and thus doing it once saves the court time. What you're suggesting is more like a John Doe case where you sue a number of unknown entit…
I'm pretty sure that if the named defendant coughs up an NDA that prevents them from disclosing the names of their business associates to a court, the judge is not just going to say, "I'll allow it."